A booming high-rise, 609 Main—with 37 floors of office space, 11 floors of parking, a top floor of mechanical space and an underground floor tying into Houston’s tunnel network—represents one of TD’s most aggressive timelines to date.

Onsite since August 2014, 609 Main is a cast-in-place concrete building. TD installed more than 1 million pounds of sheet metal, 24,000 ft of flex duct, 31,000 ft of HVAC piping and 58,000 ft of plumbing pipe—all within strict guidelines for delivery times and noise levels thanks to the project’s downtown address.